@Ari-Sorokin Skillshare and Udemy are huge learning platforms. Anyone can open an account there and publish their courses about any subject, no matter if they have qualifications or not. There's thousands and thousands of teachers and courses, and very little or no quality check. SVS is a small company owned by three veteran illustrators. They teach most of the classes and have also brought in a few other teachers for some classes, all veteran illustrators that the 3 founders know and trust. These teachers know their stuff, that's the biggest difference. However, it doesn't guarantee that you'll take to their teaching style and if their curriculum will fit the way you learn best.
Go listen to their podcast maybe? All 3 of them also have youtube channels so you can check out their videos and see if you mesh with any of them. They have very different styles.
- Lee is very methodical, with step by step and breaking topics down. He's also a watercolor artist so he has great classes on painting.
- Will tends to talk a lot, sometimes it can seem a bit less planned and long, but he always have such interesting insight and you learn a lot from his long-winded "rambles". He's currently Kickstarting a book "What they don't teach you in art school" that seems amazing, and was funded in 5 minutes.
- Jake is kind of like the little prodigy LOLLL. He's had enormous success because of his approach in life and art. I always learn most from him about what it means to be an artist and he inspires me to do more because man can that guy get shit done haha... He's good at social media and is known for his wise concepts and catchphrases like the creative bank account and "Finished, not perfect."
If I had to recommend just one class to an artist, it would be Jake's "How to draw everything". I think it's a must!